Jingle Cross Rock is a 3-day cyclocross event to benefit the Children's Hospital of Iowa. The races take place at the Johnson County Fairgrounds in Iowa City, Iowa. The facility is traditionally used for agricultural shows and fairs, but for Jingle Cross Rock , the venue uses some clever twists to turn the barns and fairgrounds into an exciting cyclocross course with a Christmas flair.

A livestock scale house is turned into a sand pit and appropriately called the Grinch's Lair with the Grinch theme song playing in the background. Another barn is turned into an indoor Christmas light show. And behind the barns, a large steep hill becomes Mount Krumpit, with an 80 meter run-up that rivals even the famed Kona-Knapp run-up in the Pacific Northwest. For the spectators, the venue is a treat as cycling fans can stand atop Mount Krumpit and see the entire race unfold from a bird's eye view. To top things off, the Grinch makes a surprise visit for the kids fun race and awards teddy bears to all of the participants.

All proceeds from all days are donated to the Children's Hospital. And with $20,000 in cash, merchandise, and swag for the 2 day event, Jingle Cross Rock attracts out many of the nation's top racers.